Draw spike



Dec. 11, 1923. 1,476,698

' T. C. EKLAND DRAW SPIKE Filed'Nov. 10 1922 aqio'rhey, I

Patented Dec. 1l, 1923.

iiNiTEn STATES P'ATENT oFFi-cr..

THOMAS c. EKLANn'oF WASHINGTON, PEN1\Ts'YI .vA1`TIA.v

DRAW srIKE.

Application inea november 10,1922. serial No. 600,145.' Y i To aZZKwiomit may concern: K i

Be it known that I, THoMAs C. EKLANI?, a subject of the King of Sweden',and a resident of vFashington, in the county oi' *Wash-V 5 ington andState of Pennsylvania, have invented certain new and useful mprovementsin Draw Spikes; andlrdo hereby de` clare the following to be a full,clear, and

exact description of the invention, such as f will enable others skilledin the art to whichit 'zipper-eins to make and use the saine.y

rhe object of the invention 1s, to provide a simple, cheap' and eicientdevice for lifting patterns in moulds, andA theV invention consists ofcertain novel "features and details 'oi' construction, as will bemoreVfully described hereinafter and finally pointedout in the claim.

l will now describe my invention, reference being had to theacconipanying` drawings, -in which similar letters of reference'indicate corresponding parts in the difieren figures, and in which,

Figure l, is a side elevation of my iin- .Y

proved pattern-li'ftingrs'crew. Fig. 2, is a similar view, partly insection, and Fig. 3,

is a plan view of the adjustable plate aneye or handle E, which mayberof anyq desired form.

'ent is: i

r.lhe foperation is as follows: i Y g The screw A, is pushed downthrough the cope of the mould and screwedA into the Aup- 'Yper-half oithe pattern; the adjustable plate 404 B, is then pushed down on thescrew, the

undersidel of the 'plate resting onA thetop iofthe cope. l The'set-screw' C, is then tightene'd and everything is in readiness forsepa-v rating the pattern halves when the' cope andY 45 drag areseparated.

Y Heretofore, a simple device,calledaspike, i l was used for thispurpose and has proven i to be ineflicient, as often times the mould Vwould pull 'oit the' end and drop,`spojiling 5cl the job and'causingthemoulder todo his j workover.'`

HavingL described my invention, what I claim and Vdesire'to secure byLetters PatV A patternflitting-screw, consisting of the screw proper'threaded on its lowerl end and a suitabl'e'handle formed on itsupperend,

van adjustable plate mounted on said-screw and provided with vaset-screw fory securing "said plate rigidly Vin, positionon saidprscrew,:all substantially as shown and orthepurposes described. l

In testiinony'that I claim thev foregoing f "to be my owninvention,I`havehereunto set miv my hand in the presence oftwosulliscribingI witnesses. Y e f THOMAS C. EKLAND. Witnesses:` Y f"JOHN F.` CARMICHAEL,

MARKVM. DECKER.

